Finding the Fourth Proportional to 143,972.17, 215,790.12 and 108,318.96
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Solution
The fourth proportional to 143,972.17, 215,790.12 and 108,318.96 is: 162,351.94
Step by Step Solution
- Step 1: Write the proportion equation
143,972.17 : 215,790.12 = 108,318.96 : x - Step 2: Convert to fraction form
143,972.17/215,790.12 = 108,318.96/x - Step 3: Cross multiply
143,972.17x = 215,790.12 × 108,318.96 - Step 4: Simplify right side
143,972.17x = 23,374,161,376.68 - Step 5: Solve for x
x = 23,374,161,376.68/143,972.17 - Step 6: Final answer
x = 162,351.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.